Ammandra

Ammandra
 O.F.Cook


Original
reference:
J. Wash. Acad. Sci. 17: 220 (1927)

Type:
Ammandra decasperma O.F.Cook

Morphology:
Small to medium sized, dioecious palms. Stem short, usually solitary, subterranean or creeping, rough-ringed. Leaves pinnate, regularly divided, large, with a very long petiole making up 1/3 to 1/2 of the whole leaf; pinnae regularly inserted in one plane, with conspicuous submarginal veins. Inflorescences with several peduncular bracts. Male inflorescence yellow, cylindrical, formed by a mass of densely positioned, stalked male flowers, these with an inconspicuous perianth and numerous stamens and arranged in small heads borne on short inflorescence branches. Female inflorescence compact, with 6-10 flowers, each with 4 sepals, 4-6 petals, and an ovary formed by 6-10 united carpels with one long style. Infructescence globular; fruits covered with corky protuberances. Seedling leaves pinnately divided.




Distribution
and diversity: A monotypic genus distributed in the Colombian Chocó southwards to Buenaventura and in the W part of the Amazon basin in Colombia and Ecuador.

Notes:
Ammandra, together with Aphandra and Phytelephas, form the group of vegetable ivory palms (subfamily Phytelephantoideae)


 

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